12000031523144 has 64 divisors (see below), whose sum is σ = 25799308963200. Its totient is φ = 5125884355584.

The previous prime is 12000031523113. The next prime is 12000031523147. The reversal of 12000031523144 is 44132513000021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12000031523147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128531072 + ... + 128624400.

It is an arithmetic number, because the mean of its divisors is an integer number (403114202550).

Almost surely, 2^{12000031523144} is an apocalyptic number.

12000031523144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12000031523144 is an abundant number, since it is smaller than the sum of its proper divisors (13799277440056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12000031523144 is a wasteful number, since it uses less digits than its factorization.

12000031523144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100902 (or 100898 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 12000031523144 its reverse (44132513000021), we get a palindrome (56132544523165).

The spelling of 12000031523144 in words is "twelve trillion, thirty-one million, five hundred twenty-three thousand, one hundred forty-four".